Scraper-plow



' A. J. BURR. SGRAPER PLOW.

(No Model.)

N0. 511,583. Patented Dec. 26, 1893.

7 INVENTOH WITNESSES:

ATTORNEYS.

THE NAYIONAL LIYMOGRAFNINI: coMPANY. wunma'rou. n. e.

PATENT Fries.

AARON J. BURR, OF GRIFFIN, GEORGIA.

SCRAPER-PLOW.

SPECIFICATION forming part of Letters Patent No. 511,583, dated December26, 1893.

Application filed March 22, 1893- Serial No. i N modem To all whom itmay concern:

Be it known that I, AARON J. BURR, of Griffin, in the county of Spaldingand.State of Georgia, have invented a new and useful Improvement inScraper-Flows, of which the following is a full, clear, and exactdescription.

My invention relates to an improvement in plows, especially to what isknown as scraper plows or scrapers and adapted forthe cultivation ofcotton, corn and other grain, and the object of the invention is toconstruct the plows in such manner that their cutting edges will remainsharp longer than when the plows are made in the ordinary manner, and amore efiective scraping of the surface of the ground may be obtained.

A further object of the invention is to provide a means whereby inaddition to the plow scraping or cutting with greater facility than iscustomary, the refuse matter will be discharged from the plow in a muchmore expeditious and cleanly manner than is now possible.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth and pointed out inthe claim.

' Reference is to be had to the accompanying drawings forming a part ofthis specification,

in which similar figures and letters of reference indicate correspondingparts in all the views. v

Figure 1 is a front elevation'of the improved scraper. Fig. 2 is avertical section taken practically on the line 2-2 of Fig. 1. Fig. 3 isa front elevation of a slightly modified form of the scraper;and Fig. 4is a vertical section taken practically on the line 4 4 of Fig. 3.

In carrying out the invention the under face 10 of the scraper, is madeperfectly straight while its upper surface from a point near the centerdesignated as a, is beveled downward to the lower edge, thus renderingthat portion of the scraper wedge-shaped in cross section, and a sharpcutting edge a, is obtained. By locating the bevel on top of the scraperblade instead of on the bottom a much finer point may be made, and onethat will last much longer than when the bevel is made upon the underside, since the earth in gradually wearing oif the surface at the lowerback portion of the blade will maintain the lower or cutting surface ingood cutting condition. Furthermore, the beveled surface when locatedupon the outer face of the blade maybe sharpened much more readily thanwhen the bevel is on the back, as'the sharpening may be accomplishedwithout inverting the implement, or without removing the blade from itsshank.

The only difference between the construction shown in Figs. '1 and 3,consists in the fact that the upper portion of the scraper blade, asshown in Fig. 1, is straight, while the upper surface of the blade asconstructed in Fig. 3, is beveled, the bevel extending from the pointa,at which the lower bevel commences, upward and rearward to the upperedge, thus producing an upward rearwardly-inclined front surface 11,over which the dirt, weeds, 650., removed from the ground by thescraper, may pass in an expeditious and cleanly manner; that is to say,such matter will pass rearward at the back of the plow more in bulk thanheretofore and much more rapidly, and will not scatter in advance of thescraper.

A scraper blade provided with two bevels is especially desirable, butthe lower bevel located at the front provides for an eifective cuttingsurface and one that will last for a long time.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- A scraper plow formed of a single piece and havingrearwardly and upwardly inclined wings at opposite sides of a straightmiddle portion; the outer face of the scraper being beveled from themiddle line ato the bottom edge, substantially as set forth.

AARON J. BURR.

Witnesses M. M. IsoN, J. G, RHEA.

